#!/usr/bin

line="root:x:0:0:root:/root:/bin/bash"

oldIFS=$IFS

IFS=":"

count=0

for item in $line
do
[ $count -eq 0 ] && user=$item
[ $count -eq 6 ] && shell=$item

let count++
done

IFS=$oldIFS
echo $user \`s shell is $shell
